期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 9, 期 6, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2021.106317
关键词
MOFs; Surface-enhanced Raman scattering (SERS); Selective detection; Precipitation polymerization; Organic pollutants
资金
- National Natural Science Foundation [21906062]
- Natural Science Foundation of Jilin Province [KYC-JC-XM-2020-108]
- National Natural Science Foundation of China [21871246]
- Grant of Jilin Province Science & Technology Committee [20200201082JC]
- Jilin Province Education Department the Science & Technology development project [JJKH20200741KJ]
A novel SERS imprinted composite material was synthesized for specific detection of organic dyes in rivers using surface enhanced Raman scattering and molecular imprinting technology. The Ag@UIO-66(NH2)/PDA substrate showed selective detection ability with a linear relationship between OII concentrations and characteristic peak intensity. The detection limit was below 10(-10) mol/L with a correlation coefficient of 0.9985, expanding the application of SERS detection in practical samples.
In this paper, a novel SERS imprinted composite material was successfully synthesized with the aid of surface enhanced Raman scattering technology and molecular imprinting technology, which could be suitable for specific detection of organic dyes in the river. The UIO-66(NH2) was wrapped with a thin layer of polydopamine (PDA), after loading Ag nanoparticles on rough surface, Ag@UIO-66(NH2)/PDA was synthesized and applied as the SERS substrate. In order to promote the ability of selective detection property in the practical sample, the molecularly imprinted polymer (Ag@UIO-66(NH2)/PDA-MIPs) was proposed. When the concentrations range changed between 10(-8) mol/L and 10(-10) mol/L, the intensity of characteristic peak at 1596 cm(-1) exhibited a linear relationship with OII concentrations increasing. The limit of detection was low than 10(-10) mol/L, the correlation coefficient was 0.9985. The prepared SERS substrate could be available to the practical sample detection, which expanded SERS detection fields.
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